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Kinetics and thermodynamics of the phosphine adsorption on the modified activated carbon

Bingnan REN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2,   Pages 203-208 doi: 10.1007/s11705-010-0571-0

Abstract: The kinetics and the thermodynamics of phosphine (PH ) adsorption on the modified activated carbon haveThe thermodynamic properties including PH adsorption isotherm and adsorption heat were separately investigatedBy analyzing the results of the kinetics and the thermodynamics, we found that the adsorption of PHThen with increasing temperature, chemical adsorption gradually dominated in the adsorption process.The adsorption capacity decreased at above 70°C is due to the exothermic effects in the process of adsorption

Keywords： adsorption     PH3     activated carbon     kinetics     thermodynamics    

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Adsorption of herring sperm DNA onto pine sawdust biochar: Thermodynamics and site energy distribution

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1579-7

Abstract:

● Adsorption of environmental deoxyribonucleic acid on biochar was

Keywords： Environmental deoxyribonucleic acid     Antibiotic resistance genes     Biochar     Adsorption thermodynamics    

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Removal of Rhodamine B from aqueous solutions and wastewater by walnut shells: kinetics, equilibrium and thermodynamics

Jasmin Shah, M. Rasul Jan, Attaul Haq, Younas Khan

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 428-436 doi: 10.1007/s11705-013-1358-x

Abstract: An adsorption study of Rhodamine B (RB) dye from aqueous solutions was carried out using walnut shellsThe adsorption process was highly pH dependent and a maximum adsorption was achieved at pH 3.0.The best fit for the rates of dye adsorption was a pseudo-second-order kinetic model with good correlationThe dye adsorption was also evaluated thermodynamically. Positive standard enthalpy (?°) values were obtained indicating that the RB adsorption process is endothermic as well as ?

Keywords： Rhodamine B     walnut shell adsorption     kinetics     isotherms     regeneration    

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Facile synthesis of α-MnO

Weixin ZHANG, Wenran ZHAO, Zaoyuan ZHOU, Zeheng YANG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1,   Pages 64-72 doi: 10.1007/s11705-014-1402-5

Abstract: The α-MnO micronests were demonstrated to have a higher adsorption capacity than γ-MnO microspheresKinetics, isotherms and thermodynamics for the adsorption of Congo red on α-MnO micronests were examinedThe adsorption process followed the pseudo-second-order kinetics with good correlation.The adsorption was spontaneous and endothermic according to thermodynamic studies.The experimental results indicate that α-MnO micronests possess a high adsorption capacity and could

Keywords： MnO2     Congo red     adsorption     kinetics     isotherm     thermodynamics    

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Biosorption of Cr(VI) by carbonized

Jinfa CHEN,Ping YANG,Dagang SONG,Sha YANG,Li ZHOU,Lei HAN,Bo LAI

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 960-966 doi: 10.1007/s11783-013-0612-2

Abstract: Solution pH is found influencing the adsorption.Langmuir and Freundlich adsorption isotherms were applicable to the adsorption process and their constantsThe adsorption data obtained agreed well with the Langmuir sorption isotherm model.The maximum adsorption capacities for Cr(VI) ranged from 46.23 to 55.19 mg·g for temperature betweenenthalpy ( ) and entropy ( ) indicate a spontaneous, endothermic and increased randomness nature of Cr(VI) adsorption

Keywords： Eupatorium adenophorum     buckwheat straw     adsorption     Cr(VI)     thermodynamics    

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Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1581-0

Abstract:

● The co-existing metals in WPCBs has positive catalytic influence in pyrolysis.

Keywords： Waste printed circuit board     Catalyst     Pyrolysis     Kinetics    

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Latest progress in numerical simulations on multiphase flow and thermodynamics in production of natural

Lin ZUO, Lixia SUN, Changfu YOU

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 152-159 doi: 10.1007/s11708-009-0017-x

Abstract: Some studies on the multiphase flow and thermodynamics have been conducted to investigate the feasibilityA comprehensive numerical method considering the multiphase flow and thermodynamics of gas production

Keywords： numerical simulation     natural gas hydrate     dissociation     thermodynamics     multiphase flow    

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Contributions of adsorption, bioreduction and desorption to uranium immobilization by extracellular polymeric

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1707-z

Abstract:

● EPS immobilizes U(VI) via adsorption, bioreduction and desorption

Keywords： Adsorption     Bioreduction     Desorption     Kinetics     Isotherm     Uranium    

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Polypropylene microplastics alter the cadmium adsorption capacity on different soil solid fractions

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 3-3 doi: 10.1007/s11783-021-1437-z

Abstract: In this study, batch experiments were performed to investigate the adsorption characteristics of Cd in

Keywords： Polypropylene microplastics     Cadmium     Adsorption     POM     OMC     Mineral    

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Cesium removal from radioactive wastewater by adsorption and membrane technology

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11783-024-1798-1

Abstract:

● Removal of cesium from radioactive wastewater is still a challenging.

Keywords： Cesium     Adsorption     Membrane separation     Advanced liquid processing system     Fukushima nuclear accident    

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Dual-functional sites for synergistic adsorption of Cr(VI) and Sb(V) by polyaniline-TiO hydrate: Adsorption

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1526-7

Abstract: OH)n(4–n)+ exhibited excellent adsorption

Keywords： Polyaniline/TiO2     Chromium     Antimony     Adsorption     Desorption     Mechanism    

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Optimization of the power, efficiency and ecological function for an air-standard irreversible Dual-Miller cycle

Zhixiang WU, Lingen CHEN, Yanlin GE, Fengrui SUN

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 579-589 doi: 10.1007/s11708-018-0557-z

Abstract: This paper establishes an irreversible Dual-Miller cycle (DMC) model with the heat transfer (HT) loss, friction loss (FL) and other internal irreversible losses. To analyze the effects of the cut-off ratio ( ) and Miller cycle ratio ( ) on the power output ( ), thermal efficiency ( ) and ecological function ( ), obtain the optimal and optimal , and compare the performance characteristics of DMC with its simplified cycles and with different optimization objective functions, the , and of irreversible DMC are analyzed and optimized by applying the finite time thermodynamic (FTT) theory. Expressions of , and are derived. The relationships among , , and compression ratio ( ) are obtained by numerical examples. The effects of and on , , , maximum power output ( ), maximum efficiency ( ) and maximum ecological function ( ) are analyzed. Performance differences among the DMC, the Otto cycle (OC), the Dual cycle (DDC), and the Otto-Miller cycle (OMC) are compared for fixed design parameters. Performance characteristics of irreversible DMC with the choice of , and as optimization objective functions are analyzed and compared. The results show that the irreversible DMC engine can reach a twice-maximum power, a twice-maximum efficiency, and a twice-maximum ecological function, respectively. Moreover, when choosing as the optimization objective, there is a 5.2% of improvement in while there is a drop of only 2.7% in compared to choosing as the optimization objective. However, there is a 5.6% of improvement in while there is a drop of only 1.3% in compared to choosing as the optimization objective.

Keywords： finite-time thermodynamics     Dual-Miller cycle     power output     thermal efficiency     ecological function    

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An adsorption study of

Lingxiao FU, Jianhua ZU, Enxi GU, Huan WANG, Linfeng HE

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 11-17 doi: 10.1007/s11708-019-0634-y

Abstract: Nanoscale zero-valent iron (nZVI) supported on D001 resin (D001-nZVI) was synthesized for adsorptionFactors (pH, resin dose) affecting Re(VII) adsorption were studied.The high adsorption efficiency of Re(VII) at pH= 3 and the solid-liquid ratio of 20 g/L.where the adsorption efficiency of Tc(VII) can reach 94%.and the maximum dynamic adsorption capacity was 0.2910 mg/g.

Keywords： technetium     nanoscale zero-valent iron (nZVI)     D001 resin     adsorption    

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Room temperature liquid metal: its melting point, dominating mechanism and applications

Junheng FU, Chenglin ZHANG, Tianying LIU, Jing LIU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 81-104 doi: 10.1007/s11708-019-0653-8

Abstract: The room temperature liquid metal (LM) is recently emerging as a new class of versatile materials with fascinating characteristics mostly originated from its simultaneous metallic and liquid natures. The melting point is a typical parameter to describe the peculiarity of LM, and a pivotal factor to consider concerning its practical applications such as phase change materials (PCMs) and advanced thermal management. Therefore, the theoretical exploration into the melting point of LM is an essential issue, which can be of special value for the design of new LM materials with desired properties. So far, some available strategies such as molecular dynamics (MD) simulation and classical thermodynamic theory have been applied to perform correlative analysis. This paper is primarily dedicated to performing a comprehensive overview regarding typical theoretical strategies on analyzing the melting points. It, then, presents evaluations on several factors like components, pressure, size and supercooling that may be critical for melting processes of liquid metal. After that, it discusses applications associated with the characteristic of low melting points of LM. It is expected that a great many fundamental and practical works are to be conducted in the coming future.

Keywords： melting point     liquid metal     crystal     thermodynamics     molecular dynamics    

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Dialdehyde cellulose nanocrystal cross-linked chitosan foam with high adsorption capacity for removal

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 853-866 doi: 10.1007/s11705-022-2256-x

Abstract: However, the high adsorption capacity, predominant pH-responsibility, and excellent recyclability areThe maximum dye adsorption capacity of 1238.1 mg∙g‒1 is achieved under the conditions of 20The dominant adsorption mechanism for the anionic dye adsorption is electrostatic attraction, and FoamIts easy recovery and good reusability are verified by the repeated acid adsorption–alkaline desorption

Keywords： chitosan foam     cellulose nanocrystals     acid red 134     adsorption    

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Title Author Date Type Operation

Kinetics and thermodynamics of the phosphine adsorption on the modified activated carbon

Bingnan REN

Journal Article

Adsorption of herring sperm DNA onto pine sawdust biochar: Thermodynamics and site energy distribution

Journal Article

Removal of Rhodamine B from aqueous solutions and wastewater by walnut shells: kinetics, equilibrium and thermodynamics

Jasmin Shah, M. Rasul Jan, Attaul Haq, Younas Khan

Journal Article

Facile synthesis of α-MnO

Weixin ZHANG, Wenran ZHAO, Zaoyuan ZHOU, Zeheng YANG

Journal Article

Biosorption of Cr(VI) by carbonized

Jinfa CHEN,Ping YANG,Dagang SONG,Sha YANG,Li ZHOU,Lei HAN,Bo LAI

Journal Article

Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals

Journal Article

Latest progress in numerical simulations on multiphase flow and thermodynamics in production of natural

Lin ZUO, Lixia SUN, Changfu YOU

Journal Article

Contributions of adsorption, bioreduction and desorption to uranium immobilization by extracellular polymeric

Journal Article

Polypropylene microplastics alter the cadmium adsorption capacity on different soil solid fractions

Journal Article

Cesium removal from radioactive wastewater by adsorption and membrane technology

Journal Article

Dual-functional sites for synergistic adsorption of Cr(VI) and Sb(V) by polyaniline-TiO hydrate: Adsorption

Journal Article

Optimization of the power, efficiency and ecological function for an air-standard irreversible Dual-Miller cycle

Zhixiang WU, Lingen CHEN, Yanlin GE, Fengrui SUN

Journal Article

An adsorption study of

Lingxiao FU, Jianhua ZU, Enxi GU, Huan WANG, Linfeng HE

Journal Article

Room temperature liquid metal: its melting point, dominating mechanism and applications

Junheng FU, Chenglin ZHANG, Tianying LIU, Jing LIU

Journal Article

Dialdehyde cellulose nanocrystal cross-linked chitosan foam with high adsorption capacity for removal

Journal Article